import { reqCartList, reqDeleteCartById, reqUpdateCheckedById } from "../api"
const state = {
    cartList: []
}
const mutations = {
    GETCARTLIST(state, cartList) {
        state.cartList = cartList
    }
}
const actions = {
    //获取购物车列表数据
    async getCartList({ commit }) {
        let result = await reqCartList()
        //测试是否能获取个人购物车数据
        console.log(result)
        if (result.code == 200) {
            commit('GETCARTLIST', result.data)
        }
    },
    //删除购物车某一个商品
    async deleteCartListBySkuId({ commit }, skuId) {
        let result = await reqDeleteCartById(skuId)
        if (result.code == 200) {
            return 'ok'
        } else {
            return Promise.reject(new Error('fail'))
        }
    },
    //修改购物车某一个产品的选中状态
    async updateCheckedById({ commit }, { skuId, isChecked }) {
        let result = await reqUpdateCheckedById(skuId, isChecked)
        if (result.code == 200) {
            return 'ok'
        } else {
            return Promise.reject(new Error('fail'))
        }
    },
    //删除全部勾选的产品
    deleteAllCheckedCart({ dispatch, getters }) {
        //context:小仓库， commit[提交mutations修改state] getters [计算属性] dispatch[派发action] state[当前仓库数据]
        //获取购物车中全部的商品（数组）
        let PromiseAll = [];
        getters.cartList.cartInfoList.forEach((item) => {
            let promise =
                item.isChecked == 1 ? dispatch("deleteCartListBySkuId", item.skuId) : "";
            //将每一次返回的Promise添加到数组当中
            PromiseAll.push(promise);
        });
        //只要全部的p1|p2....都成功，返回结果即为成功
        //如果有一个失败，返回即为失败结果
        return Promise.all(PromiseAll);
    },
    //修改全部产品的状态
    updateAllCartIsChecked({ dispatch, state }, isChecked) {
        //数组
        let promiseAll = [];
        state.cartList[0].cartInfoList.forEach((item) => {
            let promise = dispatch("updateCheckedById", {
                skuId: item.skuId,
                isChecked,
            });
            promiseAll.push(promise);
        });
        //最终返回结果
        return Promise.all(promiseAll);
    },
}
const getters = {
    cartList(state) {
        return state.cartList[0] || {}
    },

}

export default {
    state,
    mutations,
    actions,
    getters
}